The aim of this study was to assess the effect of filtering techniques on the time-domain analysis of the P-wave. Multi-lead ECG recordings obtained from chronic AF patients after successful external cardioversion have been acquired. Several high-pass filtering techniques and three cut-off frequency values were used: Bessel and Butterworth four-pole and two-pole bidirectional and unidirectional filters, at 0.01, 0.05 and 0.5 Hz low cut-off frequency. As a reference, a beat-by-beat linear piecewise interpolation was used to remove baseline wander, on each P-wave. Results show that ECG filtering affects the estimation of P-wave duration in a manner that depends upon the type of filter used: particularly, the bidirectional filters caused negligible variation of P- wave duration, while unidirectional ones provoked an increase higher than 8%.

Effect of ECG filtering on time domain analysis of the P-Wave / Censi, F.; Calcagnini, G.; Bartolini, P.; Cervi, E.; Diemberger, I.; Corazza, I.; Boriani, G.. - In: COMPUTERS IN CARDIOLOGY. - ISSN 0276-6574. - 35:(2008), pp. 1077-1080. ((Intervento presentato al convegno Computers in Cardiology 2008, CAR tenutosi a Bologna, ita nel 2008 [10.1109/CIC.2008.4749232].

Effect of ECG filtering on time domain analysis of the P-Wave

Boriani, G.
2008

Abstract

The aim of this study was to assess the effect of filtering techniques on the time-domain analysis of the P-wave. Multi-lead ECG recordings obtained from chronic AF patients after successful external cardioversion have been acquired. Several high-pass filtering techniques and three cut-off frequency values were used: Bessel and Butterworth four-pole and two-pole bidirectional and unidirectional filters, at 0.01, 0.05 and 0.5 Hz low cut-off frequency. As a reference, a beat-by-beat linear piecewise interpolation was used to remove baseline wander, on each P-wave. Results show that ECG filtering affects the estimation of P-wave duration in a manner that depends upon the type of filter used: particularly, the bidirectional filters caused negligible variation of P- wave duration, while unidirectional ones provoked an increase higher than 8%.
Computers in Cardiology 2008, CAR
Bologna, ita
2008
35
1077
1080
Censi, F.; Calcagnini, G.; Bartolini, P.; Cervi, E.; Diemberger, I.; Corazza, I.; Boriani, G.
Effect of ECG filtering on time domain analysis of the P-Wave / Censi, F.; Calcagnini, G.; Bartolini, P.; Cervi, E.; Diemberger, I.; Corazza, I.; Boriani, G.. - In: COMPUTERS IN CARDIOLOGY. - ISSN 0276-6574. - 35:(2008), pp. 1077-1080. ((Intervento presentato al convegno Computers in Cardiology 2008, CAR tenutosi a Bologna, ita nel 2008 [10.1109/CIC.2008.4749232].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1168312
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